Inclusive Charm Cross-Sections In 800 Gev/Cp-P Interactions

R Ammar,Sunanda Banerjee,J F Baland,S Ball,R C Ball,P C Bhat,C Bromberg,R Brun, G E Canough, T Coffin, V Commichau, R Davis, T O Dershem, R Dixon, H Fenker,S N Ganguli,U Gensch, N Giokaris, P Girtler,A T Goshaw, Joseph Gress, A Gurtu, V P Henri,J J Hernandez, J Hrubec,M Iori,L W Jones, D Knauss,D Kuhn, N Kwak, I Leedom, P Legros, J Lemonne,H Leutz,Xiaoping Liu,P K Malhotra, J M Marraffino, G E Mendez,S Mikocki,R L Miller,Thomas Naumann,G Neuhofer, A Nguyen, Marija Nikolic,H Nowak,P Pilette, A Poppleton,J A Poirier,R Raghavan, K Rasner, S Reucroft,W J Robertson,B P Roe, Charles E Roos, A P Roth,Michael W Senko,W Struczinski, Arunkumar Subramanian, M C Touboul, B Vonck, L Voyvodic,W D Walker,J W Waters, M Weber,M S Webster, J H Wickens, C F Wild, S Youtsey

PHYSICS LETTERS B（1987）

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摘要

Abstract We report a measurement of the inclusive D/D production cross section in 800 GeV/ c proton-proton interactions. The experiment used the high resolution bubble chamber LEBC exposed to an 800 GeV/ c proton beam at the Fermilab MPS. We obtain σ( D/ D )=59 −15 +22 μ b (statistical errors), having analysed 25% of the total data sample. Comparison with 400 GeV/ c pp dat a obtained with LEBC at CERN shows a D/D cross section increase by a factor of 1.7 −0.5 +0.7 . This is in good agreement with fusion model calculations.

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关键词

high resolution,particle physics,cross section

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